BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 46 46.5%
2 United States 28 28.3%
3 Australia 9 9.1%
4 Germany 7 7.1%
5 Hong Kong 3 3%
6 Belgium 2 2%
7 Korea, Republic of 1 1%
8 Portugal 1 1%
9 Taiwan 1 1%
10 United Kingdom 1 1%